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abandoned cultivation
相关语句
  弃耕
     Abandoned cultivation succession and restoration ecology
     弃耕演替与恢复生态学
短句来源
     Abandoned cultivation succession is an important succession pattern. It can provide guidance for restoration projects.
     弃耕演替是一种重要的演替模式 ,可以为生态恢复规划提供指导。
短句来源
     Abandoned cultivation succession is an advancing succession.
     弃耕演替为进展演替 ,但要恢复为稳定的生态系统可能会经历很长一段时间。
短句来源
     Research on abandoned cultivation succession was the basis for restoration ecology,which is established and developed with the research on abandoned cultivation succession.
     弃耕演替研究隶属于恢复生态学 ,是恢复生态学涵盖的一个重要领域。
短句来源
  相似匹配句对
     Abandoned cultivation succession and restoration ecology
     弃耕演替与恢复生态学
短句来源
     Abandoned cultivation succession is an advancing succession.
     弃耕演替为进展演替 ,但要恢复为稳定的生态系统可能会经历很长一段时间。
短句来源
     Cultivation and Interpretation
     修养工夫与经典阐释——朱熹阐释思想研究之一
短句来源
     agricultural cultivation;
     第二,农业耕作因素。
短句来源
     To Escape & Abandoned
     逃避与遗弃——莫言的《幽默与趣味》与卡夫卡《变形记》之比较
短句来源
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  abandoned cultivation
klaineana stands present in the area became established on abandoned cultivation clearings.
      


Planting trees in blocked out mountains and reforestation in slope cultivated land are significant strategic project of ecological environment construction in Hubei province. As a systems engineering, planting trees in blocked out mountains must figuring out fostering direction, nailing down duty, right and benefit, doing well policy, technology and optimizing genus of nursery stock, understanding rightly about the relationship between utilizing forestry resource in reason and blocking out for reforestation....

Planting trees in blocked out mountains and reforestation in slope cultivated land are significant strategic project of ecological environment construction in Hubei province. As a systems engineering, planting trees in blocked out mountains must figuring out fostering direction, nailing down duty, right and benefit, doing well policy, technology and optimizing genus of nursery stock, understanding rightly about the relationship between utilizing forestry resource in reason and blocking out for reforestation. About reforestation, it must be done according to practice, understands important meaning of studying slope, model of abandoning cultivation, at the same time, policy, law, code etc are also important actors. Aim at the matter of deficient of fund, it expounds that system of compensate for ecological system is a kind of scientific and effective measure.

封山植树、退耕还林是湖北省生态环境建设的重大战略举措。封山植树作为一项系统工程 ,必须解决森林培育方向 ,明确责权利 ,搞好政策支撑、科技支撑 ,保证苗木种质优化 ,正确认识合理利用森林资源与封山植树的关系。退耕还林项目的实施 ,必须从实际出发 ,充分认识退耕坡度、退耕模式等科学研究的重要意义 ,同时保障政策、法律、法规的有力支撑 ,针对资金不足的问题 ,提出生态补偿制度。

Abandoned cultivation succession is an important succession pattern.It can provide guidance for restoration projects.Abandoned cultivation succession is an advancing succession.It takes a very long time to restore an ecological system to a sustainable equilibrium one,which depends on inherent law of succession.Appropriate human intervention could change and shorten the succession process greatly.Research on abandoned cultivation succession was the basis for restoration ecology,which is established and...

Abandoned cultivation succession is an important succession pattern.It can provide guidance for restoration projects.Abandoned cultivation succession is an advancing succession.It takes a very long time to restore an ecological system to a sustainable equilibrium one,which depends on inherent law of succession.Appropriate human intervention could change and shorten the succession process greatly.Research on abandoned cultivation succession was the basis for restoration ecology,which is established and developed with the research on abandoned cultivation succession.

弃耕演替是一种重要的演替模式 ,可以为生态恢复规划提供指导。弃耕演替为进展演替 ,但要恢复为稳定的生态系统可能会经历很长一段时间。这是由演替本身的规律决定的。适当的人为干预可能会改变这种状况 ,并使演替进程大大缩短。对弃耕演替的研究是恢复生态学兴起的原始策动力 ,恢复生态学是在对弃耕演替的研究中形成并获得发展的。弃耕演替研究隶属于恢复生态学 ,是恢复生态学涵盖的一个重要领域。

The uplift of the Qinghai-Xizang Plateau resulted drought and water deficiency in Western China. Large-scale land desertification and barbaric sandstorms were induced by natural factors and human activities which are one of the factors of ecology unbalance, such as reclaiming grassland into farmland, building reservoirs and channels, and irrigating too much. The Qinghai-Xizang Plateau uplift occurs grassification firstly, then desertification in Western China. According to this rule we should abandon cultivation...

The uplift of the Qinghai-Xizang Plateau resulted drought and water deficiency in Western China. Large-scale land desertification and barbaric sandstorms were induced by natural factors and human activities which are one of the factors of ecology unbalance, such as reclaiming grassland into farmland, building reservoirs and channels, and irrigating too much. The Qinghai-Xizang Plateau uplift occurs grassification firstly, then desertification in Western China. According to this rule we should abandon cultivation to recover the grassland and develop stock raising instead of immoderation reclamation during exploiting of Western China. Since 1960~70s, many middle and little size reservoirs were built at middle and lower reaches of the Tarim river and the Hei river for exploiting agriculture in Xinjiang and Hexi Corridor. Because of saving surface and underground water, these reservoirs break the original ecological environment, and bring on the waste of surface evaporation, farther result in the shortage of lower reaches and the death of Populus euphratica forest in large areas, also including the drying up of Lop Nur and Juyan lake. Sandstorms are originated from the desertification of Ejin Qin. How do we revise this vicious circle and recover the original ecological balance in Northwest China and diminish the desertification finally? The ecological environment is very fragile in the region of Northwest China in which the evaporating capacity is more than 600~800mm, therefore it is very important to utilize the water resource scientifically and continently. Thus we should build high-mountain reservoirs at the Kunlun Mountain and South Tianshan and Qilian Mountains, the upstream of Talimu river and Hei river is located respectively. The water can be transported to the lower reaches hermetically by the tunnel pipe. Moreover on one hand we can generate electricity by the hydraulic current, but on the other hand we can satisfy the farmland water and plant hillside grassland and avoid the evaporation ultimately. Thus it can be seen that building this kind of high-mountain reservoirs and transporting-pipes should be brought into the national development plan and actualize as the system repair project involving many provinces.

中国西部干旱缺水是由于青藏高原隆升造成的,大面积土地荒漠化和沙尘暴的肆虐,既有自然原因,又有因为人们违背自然规律,大量垦荒造田,修建水库和明渠,漫灌农田耗费水资源,破坏生态平衡等主要原因。青藏高原隆升先引起中国西部草原化然后是沙漠化,顺应此规律西部开发应该是“退耕还草”,恢复草场和天然植被,发展畜牧养殖业,而不是再无节制地垦荒造田发展粮食种植业。20世纪60~70年代以来,由于新疆、河西走廊的农业开发,在塔里木河上、中游和黑河中、下游修建了数十个中、小型水库,截留地表、地下径流,破坏了原始的生态环境,使大量水在水库、明渠表面蒸发浪费,却引起下游断流,大片胡杨林死亡,罗布泊、居延海等干涸,额济纳旗荒漠化成了沙尘暴的源头。如何改变这种恶性循环,恢复中国西北原有的生态平衡,从根本上遏制中国西部的荒漠化?对于年蒸发量高达600~800mm以上的中国西部地区,生态环境极为脆弱,科学节约地利用水资源十分关键。建议能在塔里木河上游的喀喇昆仑山、南天山和黑河上游的祁连山山顶冰川以下修建高山水库,通过泻水隧洞管道,封闭式地把水输送到下游,这样既可通过水头落差发电,又可沿途通过管道喷灌技术养殖山坡草场和解决下游农田用水,避免蒸发...

中国西部干旱缺水是由于青藏高原隆升造成的,大面积土地荒漠化和沙尘暴的肆虐,既有自然原因,又有因为人们违背自然规律,大量垦荒造田,修建水库和明渠,漫灌农田耗费水资源,破坏生态平衡等主要原因。青藏高原隆升先引起中国西部草原化然后是沙漠化,顺应此规律西部开发应该是“退耕还草”,恢复草场和天然植被,发展畜牧养殖业,而不是再无节制地垦荒造田发展粮食种植业。20世纪60~70年代以来,由于新疆、河西走廊的农业开发,在塔里木河上、中游和黑河中、下游修建了数十个中、小型水库,截留地表、地下径流,破坏了原始的生态环境,使大量水在水库、明渠表面蒸发浪费,却引起下游断流,大片胡杨林死亡,罗布泊、居延海等干涸,额济纳旗荒漠化成了沙尘暴的源头。如何改变这种恶性循环,恢复中国西北原有的生态平衡,从根本上遏制中国西部的荒漠化?对于年蒸发量高达600~800mm以上的中国西部地区,生态环境极为脆弱,科学节约地利用水资源十分关键。建议能在塔里木河上游的喀喇昆仑山、南天山和黑河上游的祁连山山顶冰川以下修建高山水库,通过泻水隧洞管道,封闭式地把水输送到下游,这样既可通过水头落差发电,又可沿途通过管道喷灌技术养殖山坡草场和解决下游农田用水,避免蒸发耗费,保持生态平衡。修建这种高山水库和输水管道工程应该纳入国家建设计划,作为国家跨省级的系统治理工程来实施。

 
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