1) soil conservation capacity
保土功能
1.
Evaluation of soil conservation capacity of five plantations in Simian Mountain,Chongqing,southwestern China
重庆四面山5种人工林保土功能评价
2) function of soil and water conservation
水土保持功能
1.
Boundary and assessment for major engineering with the function of soil and water conservation can reflect the basic idea of "prevention in the first place and integrating prevention with control".
对主体工程具有水土保持功能的工程的界定和评价,可以体现“预防为主,防治结合”的基本理念。
3) the security function of the land
土地保障功能
1.
However while the rural social economy developing,the security function of the land continues to weakening,the rural social security situation is stern.
但随着城市化进程的加快,土地保障功能持续弱化。
4) Soil and water conservation function
水土保持功能
1.
The developing process of soil and water conservation function of protective forest is divided into 3 stages including growing,mature and descending according to the developing speed.
依据可持续发展的机制,通过对防护林水土保持功能发展过程的分析得出:其发展过程可分为成长期、成熟期和减退期,并定义成熟期为可持续发展期。
5) function on soil and water conservation
水土保持功能
1.
Principal component analysis and hierarchical clustering method was employed,function on soil and water conservation of the main forest types in five location research stations of qiantang river, Zhejiang Province was studied.
在野外实测和室内分析的基础上,采用主成分分析、聚类分析等多种分析方法,对浙江省钱塘江流域五个定位监测站的几种主要植被类型的枯落物吸水、土壤渗透性、抗蚀性、径流量等水土保持功能进行了系统研究,结果表明: (1)落叶阔叶林的细根根长,大约有50%左右分布在土壤表层,根系消弱系数β值为0。
2.
By means of principal component analysis and factor analysis,function on soil and water conservation of the main forest types in Anji County, Zhejiang Province was studied.
在野外实测和室内分析的基础上,采用主分量分析、因子分析等多种分析方法,对黄浦江源头区——浙江省安吉县境内的几种主要植被类型的土壤渗透性、抗蚀性、抗冲性、土壤水库容及水分状况等水土保持功能进行了系统研究,结果表明: (1)各林地的渗透能力之间有差异,但都要强于裸露地。
6) function for soil fixation and water conservation
固土保水功能
1.
The function for soil fixation and water conservation of O.
利用人工径流区,以杉木人工纯林为对照,研究了福建永安安砂库区主要植被类型之一糙花少穗竹单优群落的固土保水功能。
补充资料:水土保持
水土保持 water and soil concervation 采取农、林、牧、水利工程等措施防治水土流失,充分利用水土资源的统称。采取的主要措施有:生物措施(封山育林、种草、禁止乱开荒等);工程措施(修堤、筑坝、修建鱼鳞坑、建谷坊、闸山沟等);农业技术措施(修梯田、水平沟、免耕等),以达到涵蓄水源,减少地表径流,防止土壤侵蚀。中国水土流失地区广泛,以北方黄土高原和南方红壤山丘水土流失最严重。应因地制宜采取综合治理措施,搞好水土保持,维持生态平衡,提高农业生产,防治旱涝灾害。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条